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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
commit64d98f8ee037282c35007b64c2649055c56af1db (patch)
tree5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs
parentAdding debian version 1.67.1+dfsg1-1. (diff)
downloadrustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz
rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs')
-rw-r--r--tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs b/tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs
new file mode 100644
index 000000000..9b80664b0
--- /dev/null
+++ b/tests/ui/builtin-superkinds/builtin-superkinds-phantom-typaram.rs
@@ -0,0 +1,18 @@
+// run-pass
+
+#![allow(dead_code)]
+// Tests that even when a type parameter doesn't implement a required
+// super-builtin-kind of a trait, if the type parameter is never used,
+// the type can implement the trait anyway.
+
+// pretty-expanded FIXME #23616
+
+use std::marker;
+
+trait Foo : Send { }
+
+struct X<T> { marker: marker::PhantomData<T> }
+
+impl<T:Send> Foo for X<T> { }
+
+pub fn main() { }